CN205046080U - Solar energy silicon chip cutting antiquated sand thick liquid recovery processing device - Google Patents
Solar energy silicon chip cutting antiquated sand thick liquid recovery processing device Download PDFInfo
- Publication number
- CN205046080U CN205046080U CN201520846523.8U CN201520846523U CN205046080U CN 205046080 U CN205046080 U CN 205046080U CN 201520846523 U CN201520846523 U CN 201520846523U CN 205046080 U CN205046080 U CN 205046080U
- Authority
- CN
- China
- Prior art keywords
- mortar
- storage tank
- processing device
- connects
- silicon wafers
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000005520 cutting process Methods 0.000 title claims abstract description 62
- 239000007788 liquid Substances 0.000 title claims abstract description 62
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 title claims abstract description 42
- 229910052710 silicon Inorganic materials 0.000 title claims abstract description 41
- 239000010703 silicon Substances 0.000 title claims abstract description 41
- 238000011084 recovery Methods 0.000 title abstract description 4
- 239000004576 sand Substances 0.000 title abstract 7
- 239000004570 mortar (masonry) Substances 0.000 claims abstract description 96
- 238000003860 storage Methods 0.000 claims abstract description 48
- 238000005119 centrifugation Methods 0.000 claims abstract description 20
- 239000002699 waste material Substances 0.000 claims description 45
- 235000012431 wafers Nutrition 0.000 claims description 34
- 238000004064 recycling Methods 0.000 claims description 32
- 238000005342 ion exchange Methods 0.000 claims description 11
- 239000012530 fluid Substances 0.000 claims description 9
- 238000003756 stirring Methods 0.000 claims description 9
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 7
- 239000000919 ceramic Substances 0.000 claims description 7
- 239000012528 membrane Substances 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 3
- 238000000703 high-speed centrifugation Methods 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract description 28
- 229910010271 silicon carbide Inorganic materials 0.000 abstract description 21
- 239000002245 particle Substances 0.000 abstract description 15
- 235000013312 flour Nutrition 0.000 abstract description 11
- 239000000377 silicon dioxide Substances 0.000 abstract description 11
- 239000008187 granular material Substances 0.000 abstract 4
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 17
- 238000000034 method Methods 0.000 description 7
- 239000000843 powder Substances 0.000 description 7
- 230000010355 oscillation Effects 0.000 description 6
- 239000000706 filtrate Substances 0.000 description 5
- 238000000926 separation method Methods 0.000 description 4
- 230000018044 dehydration Effects 0.000 description 3
- 238000006297 dehydration reaction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000011049 filling Methods 0.000 description 3
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 3
- 229920005591 polysilicon Polymers 0.000 description 3
- 238000000108 ultra-filtration Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 244000017160 saligot Species 0.000 description 1
- 235000009165 saligot Nutrition 0.000 description 1
- 239000011863 silicon-based powder Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Landscapes
- Grinding-Machine Dressing And Accessory Apparatuses (AREA)
- Processing Of Stones Or Stones Resemblance Materials (AREA)
Abstract
The utility model provides a solar energy silicon chip cutting antiquated sand thick liquid recovery processing device, antiquated sand thick liquid storage tank discharge gate connection charge pump, charge pump connect the ultrasonator feed inlet, and the high -speed centrifuge feed inlet is connected to the ultrasonator discharge gate, and centrifugation liquid storage tank inlet is connected to the high -speed centrifuge liquid outlet, and high -speed centrifuge goes out mortar mouth connection mortar storage tank and advances the mortar mouth. The utility model has the advantages of antiquated sand thick liquid gets into and carries out ultrasonic vibration through ultrasonator to the antiquated sand thick liquid earlier before the high -speed centrifuge and handle, peels off out at the tiny particle silica flour on large granule carborundum surface adhesion in the antiquated sand thick liquid with the carborundum granule is effectual, and then gets into high -speed centrifuge and carry out centrifugation, reduce the proportion of tiny particle silica flour in the carborundum granule that centrifugation came out, has improved the carborundum granule that obtains was starched to the antiquated sand after the recovery processing quality.
Description
Technical field
The utility model relates to a kind of device improving solar silicon wafers cutting waste mortar recycling effect.
Background technology
Along with the development of photovoltaic industry in recent years, solar-grade polysilicon sheet has become the upstream resource that Ge great Photovoltaics Com Inc. falls over each other to fight for, monocrystalline, the section production cost of polysilicon chip oneself become the primary link affecting photovoltaic industry.Produce single crystal, therefore polysilicon chip necessary cutting mortar consumption have also been obtained and increases sharply.
Photovoltaic solar silicon wafers cutting be generally use hardness high, granularity is little and the silicon carbide micro-powder of centralized particle diameter as main Cutting Medium.Silicon carbide micro-powder is joined in cutting liquid according to a certain percentage, and makes it fully disperse, be mixed with uniform and stable cutting mortar, cut for silicon chip.Use silicon carbide micro-powder is the high-speed motion of the firm line of utilization cutting in the mechanism of solar silicon wafers Linear cut as medium, silicon carbide micro-powder particle is driven to impact continuously and healthily silicon rod surface, the rigid characteristic of silicon-carbide particle and sharp water caltrop is utilized progressively to be blocked by silicon rod, this process can discharge along with larger heat of friction, therefore, cutting mortar need possess and have good dispersiveness to silicon-carbide particle, and can take away the amount of heat produced in cutting process.Wherein, silicon-carbide particle except adding in the composition of the useless cutting mortar after section, further comprises copper and iron fines that a large amount of tiny silica flours produced in cutting process and the silicon carbide crushed particles to produce owing to colliding and rub and cutting steel wire split away off in friction process.These solid particulates in mortar to the generation physical abuse of silicon chip surface, therefore can reclaim when mortar continues to utilize and need removing as far as possible to reclaim the various impurity in mortar.
Utility model content
The utility model, for above problem, provides a kind of device improving solar silicon wafers cutting waste mortar recycling effect.
Utility model object of the present utility model is realized by following scheme: a kind of solar silicon wafers cutting waste mortar recycling and processing device, comprise waste mortar storage tank, fresh feed pump, ultrasonator, supercentrifuge, mortar storage tank and centrifugation liquid storage tank, waste mortar reservoir outlet connects fresh feed pump, fresh feed pump connects ultrasonator opening for feed, ultrasonator discharge port connects high speed centrifugation machine inlet capable, supercentrifuge liquid outlet connects centrifugation liquid storage tank fluid inlet, and supercentrifuge goes out mortar mouth connection mortar storage tank and enters mortar mouth.
Further, under meter is provided with between fresh feed pump and ultrasonator.
Further, opening for feed is offered in ultrasonator upper end, and discharge port is offered in lower end.
Further, supercentrifuge goes out mortar mouth and mortar storage tank and enters mortar mouth and be provided with under meter.
Further, mortar storage tank fluid inlet connects cutting liquid storage tank liquid outlet, and pump and under meter are established in centre.
Further, mortar tank bottom middle position is provided with stir shaft, and stir shaft is provided with 1-3 layer mixing page, and paddle is by mortar storage tank decile, and stir shaft connects driving arrangement, and mortar tank bottom offers discharge port.
Further, establish heating unit in centrifugation liquid storage tank, centrifugation liquid storage tank liquid outlet connects pressure filter, and pressure filter connects ion exchange pot, and ion exchange pot connects multiple-effect evaporator, and multiple-effect evaporator connects ceramic membrane ultrafitration equipment.
Further, activated carbon filter layer is provided with between centrifugation liquid storage tank and pressure filter.
Further, supercentrifuge is provided with water-in, and water-in connects water outlet equipment.
Further, ceramic membrane ultrafitration equipment liquid outlet connects cutting liquid storage tank fluid inlet.
The beneficial effects of the utility model are: waste mortar first carries out sonic oscillation process through ultrasonator to waste mortar before entering supercentrifuge, the small-particle silica flour and silicon-carbide particle that stick to macrobead silicon carbide in waste mortar are effectively peeled away, and then enter supercentrifuge and carry out centrifugation, reduce the ratio of centrifugation silicon-carbide particle small particles silica flour out, the quality of the silicon-carbide particle obtained after improve waste mortar recycling.
Accompanying drawing explanation
Fig. 1 is schematic diagram of the present utility model.
Embodiment
Below in conjunction with specific embodiments and the drawings, the utility model is described in further detail:
With reference to shown in accompanying drawing 1, a kind of solar silicon wafers cutting waste mortar recycling and processing device of the present utility model, comprise waste mortar storage tank 1, fresh feed pump 2, ultrasonator 4, supercentrifuge 5, mortar storage tank 7 and centrifugation liquid storage tank 8, waste mortar storage tank 1 discharge port connects fresh feed pump 2, fresh feed pump 2 connects ultrasonator 4 opening for feed, ultrasonator 4 discharge port connects supercentrifuge 5 opening for feed, supercentrifuge 5 liquid outlet connects centrifugation liquid storage tank 8 fluid inlet, and supercentrifuge 5 goes out mortar mouth connection mortar storage tank 7 and enters mortar mouth.Sonic oscillation was adopted before high speed centrifugation, the effect of separating silicon carbide and silica flour when obviously can improve high-speed separation, in the silicon carbide be out separated after sonic oscillation the small particle content such as silica flour than without sonic oscillation or after being separated sonic oscillation again silicon carbide in low percent 2-of the small particle content such as silica flour percent 5, effectively improve the quality reclaiming mortar.
A kind of solar silicon wafers cutting waste mortar recycling and processing device, is provided with under meter 3 between fresh feed pump 2 and ultrasonator 4.Can the import volume of accurate-metering waste mortar.
A kind of solar silicon wafers cutting waste mortar recycling and processing device, opening for feed is offered in ultrasonator 4 upper end, and discharge port is offered in lower end.Make waste mortar effectively and all through sonic oscillation.
A kind of solar silicon wafers cutting waste mortar recycling and processing device, supercentrifuge 5 goes out mortar mouth and mortar storage tank 7 and enters mortar mouth and be provided with under meter.The amount of mortar can be isolated by accurate-metering, add cutting liquid according to its quantity.
A kind of solar silicon wafers cutting waste mortar recycling and processing device, mortar storage tank 7 fluid inlet connects cutting liquid storage tank 6 liquid outlet, and pump and under meter are established in centre, cutting liquid are imported to mortar storage tank 7, and accurate-metering and control slurry density.
A kind of solar silicon wafers cutting waste mortar recycling and processing device, mortar storage tank 7 lower center position is provided with stir shaft, stir shaft is provided with 1-3 layer mixing page, paddle is by mortar storage tank decile, stir shaft connects driving arrangement, offer discharge port bottom mortar storage tank 7, churning time at least continues 4 hours, makes cutting liquid and mortar be thoroughly mixed to form spendable solar silicon wafers cutting mortar.
A kind of solar silicon wafers cutting waste mortar recycling and processing device, heating unit is established in centrifugation liquid storage tank 8, centrifugation liquid storage tank 8 liquid outlet connects pressure filter, pressure filter connects ion exchange pot, ion exchange pot connects multiple-effect evaporator, multiple-effect evaporator connects ceramic membrane ultrafitration equipment, can further by the cutting liquid in parting liquid and silica flour Separation and Recovery.。
A kind of solar silicon wafers cutting waste mortar recycling and processing device, is provided with activated carbon filter layer between centrifugation liquid storage tank 8 and pressure filter.
A kind of solar silicon wafers cutting waste mortar recycling and processing device, supercentrifuge 5 is provided with water-in, and water-in connects water outlet equipment.
A kind of solar silicon wafers cutting waste mortar recycling and processing device, ceramic membrane ultrafitration equipment liquid outlet connects cutting liquid storage tank 6 fluid inlet, is provided with magnet bottom cutting liquid storage tank 6, and the metallic impurity in cutting liquid are reclaimed in absorption.
A kind of solar silicon wafers cutting waste mortar recycling and processing device, supercentrifuge 5 is vertical centrifugal separating machine, horizontal centrifugal separating machine, settlement separator or hydroseparator, and supercentrifuge rotating speed is 500-4800 rev/min.
A kind of solar silicon wafers cutting waste mortar recycling and processing device, fresh feed pump 2 flow is 800-1200L/h, and the volume of ultrasonator 4 is 200-300L, and ultrasonic frequency is 28-35KHz, and power density is 0.4-0.5W/cm
2.
A kind of solar silicon wafers cutting waste mortar recycling and processing device, fresh feed pump 2 flow is 1000-1400L/h, and the volume of ultrasonator 4 is 250-350L, and ultrasonic frequency is 32-40KHz, and power density is 0.45-0.55W/cm
2.
A kind of solar silicon wafers cutting waste mortar recycling and processing device, the volume of ultrasonator 4 is 200-350L, and ultrasonic frequency is 28-40KHz, and power density is 0.4-0.55W/cm
2.
A kind of solar silicon wafers cutting waste mortar recycling and processing device, adopts pipeline to connect between each parts.
A kind of solar silicon wafers cutting waste mortar recycling and processing device, is provided with strong magnetosphere between supercentrifuge 5 and mortar storage tank 7.The metal powder in mortar is reclaimed in absorption.
A kind of solar silicon wafers cutting waste mortar recycling and processing device, waste mortar through ultrasonator 4, supercentrifuge 5 according to the difference of silica flour and silicon carbide micro-powder pellet density, silicon carbide micro-powder in waste mortar is separated with the wire cutting liquid of silicon powder-containing, is recycled mortar and parting liquid; Be separated the liquid obtained, be heated to 30 ~ 70 DEG C, squeeze into pressure filter, again be separated, make the limpid no suspended substance of the liquid of discharge, adopt the method that natural subsidence and press filtration combine, silica flour is separated the filtrate obtaining secondary separation and obtain with wire cutting liquid, filtrate carries out desolventing technology, ion-exchange, multiple-effect evaporation dehydration, ultrafiltration, filling, obtained product line cutting liquid successively, and concrete steps are as follows:
A. decolour
The active carbon layer that the filtrate that secondary separation obtains passes through 1% ~ 5% of its weight decolours, and then squeeze into pressure filter, filtrate is for subsequent use;
B. ion-exchange
Filtrate after being decoloured by step a, squeezes into ion exchange pot, to the ion be mixed in silicon chip Linear cut process and in later stage sepn process, carries out ion-exchange, removes the liquid after ion, treats subsequent handling process;
C. multiple-effect evaporation dehydration
Liquid after ion-exchange is squeezed into multiple-effect evaporator, the portion of water in liquid is deviate from, make water ratio reach wire cutting liquid index, standby ultrafiltration;
D. ultrafiltration, filling
Liquid after dehydration is squeezed into ceramic membrane ultrafitration equipment, and the liquid after filtration is wire cutting liquid finished product, filling.
Although the utility model has illustrated by reference to preferred embodiment and has described, but those of ordinary skill in the art should understand, the description of above-described embodiment can be not limited to, in the scope of claims, the various changes in form and details can be made.
Claims (10)
1. a solar silicon wafers cutting waste mortar recycling and processing device, comprise waste mortar storage tank, fresh feed pump, ultrasonator, supercentrifuge, mortar storage tank and centrifugation liquid storage tank, it is characterized in that: waste mortar reservoir outlet connects fresh feed pump, fresh feed pump connects ultrasonator opening for feed, ultrasonator discharge port connects high speed centrifugation machine inlet capable, supercentrifuge liquid outlet connects centrifugation liquid storage tank fluid inlet, and supercentrifuge goes out mortar mouth connection mortar storage tank and enters mortar mouth.
2. solar silicon wafers cutting waste mortar recycling and processing device according to claim 1, is characterized in that: be provided with under meter between fresh feed pump and ultrasonator.
3. solar silicon wafers cutting waste mortar recycling and processing device according to claim 1, is characterized in that: opening for feed is offered in ultrasonator upper end, and discharge port is offered in lower end.
4. solar silicon wafers according to claim 1 cutting waste mortar recycling and processing device, is characterized in that: supercentrifuge goes out mortar mouth and mortar storage tank and enters mortar mouth and be provided with under meter.
5. solar silicon wafers cutting waste mortar recycling and processing device according to claim 1, is characterized in that: mortar storage tank fluid inlet connects cutting liquid storage tank liquid outlet, and pump and under meter are established in centre.
6. solar silicon wafers cutting waste mortar recycling and processing device according to claim 1, it is characterized in that: mortar tank bottom middle position is provided with stir shaft, stir shaft is provided with 1-3 layer mixing page, paddle is by mortar storage tank decile, stir shaft connects driving arrangement, and mortar tank bottom offers discharge port.
7. solar silicon wafers cutting waste mortar recycling and processing device according to claim 1, it is characterized in that: in centrifugation liquid storage tank, establish heating unit, centrifugation liquid storage tank liquid outlet connects pressure filter, pressure filter connects ion exchange pot, ion exchange pot connects multiple-effect evaporator, and multiple-effect evaporator connects ceramic membrane ultrafitration equipment.
8. solar silicon wafers cutting waste mortar recycling and processing device according to claim 7, is characterized in that: be provided with activated carbon filter layer between centrifugation liquid storage tank and pressure filter.
9. solar silicon wafers cutting waste mortar recycling and processing device according to claim 1, it is characterized in that: supercentrifuge is provided with water-in, water-in connects water outlet equipment.
10. solar silicon wafers cutting waste mortar recycling and processing device according to claim 1, is characterized in that: ceramic membrane ultrafitration equipment liquid outlet connects cutting liquid storage tank fluid inlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520846523.8U CN205046080U (en) | 2015-10-29 | 2015-10-29 | Solar energy silicon chip cutting antiquated sand thick liquid recovery processing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520846523.8U CN205046080U (en) | 2015-10-29 | 2015-10-29 | Solar energy silicon chip cutting antiquated sand thick liquid recovery processing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205046080U true CN205046080U (en) | 2016-02-24 |
Family
ID=55339678
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520846523.8U Expired - Fee Related CN205046080U (en) | 2015-10-29 | 2015-10-29 | Solar energy silicon chip cutting antiquated sand thick liquid recovery processing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205046080U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111359563A (en) * | 2018-12-25 | 2020-07-03 | 汉能新材料科技有限公司 | Reaction device and method for recycling waste solar chips |
| CN115404120A (en) * | 2022-08-26 | 2022-11-29 | 江阴东为资源再生技术有限公司 | Mortar recovery method, system, electronic device and storage medium |
-
2015
- 2015-10-29 CN CN201520846523.8U patent/CN205046080U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111359563A (en) * | 2018-12-25 | 2020-07-03 | 汉能新材料科技有限公司 | Reaction device and method for recycling waste solar chips |
| CN111359563B (en) * | 2018-12-25 | 2023-12-12 | 东君新能源有限公司 | Reaction device and method for recycling solar waste chips |
| CN115404120A (en) * | 2022-08-26 | 2022-11-29 | 江阴东为资源再生技术有限公司 | Mortar recovery method, system, electronic device and storage medium |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102285654B (en) | Production method of silicon wafer cutting blade material | |
| CN102010785B (en) | Method for recovering silicon carbide micropowder and wire-cutting fluid from silicon slice wire-cutting processing waste mortar | |
| CN101693928B (en) | Method for purifying primarily selected slag steel | |
| CN102730696B (en) | Physical method for recovering cutting liquid, crystal silicon micro-powder and silicon carbide micro-powder from silicon wafer cutting waste mortar | |
| CN203862376U (en) | Gravel washing, recovering and dewatering all-in-one machine | |
| CN102758089A (en) | Recovering and regenerating method of cemented carbide scrap material | |
| CN105252658B (en) | Solar silicon wafer cutting method | |
| CN101513753A (en) | Method for recovering waste slurry of multiline cut silicon chips | |
| CN104724893A (en) | Dredging and classified dewatering treatment method and system for sludge in urban river box culvert | |
| CN105436196A (en) | Kitchen garbage all-material oil removing system and oil removing method | |
| CN205046080U (en) | Solar energy silicon chip cutting antiquated sand thick liquid recovery processing device | |
| CN107716066A (en) | A kind of processing system for improving old and useless aluminium foil recovery utilization rate | |
| CN103350996B (en) | Adamantine method is reclaimed from liquid resin | |
| CN202865196U (en) | System for recovering cutting fluid and silicon carbide in waste mortar in silicon wafer cutting | |
| CN210875709U (en) | Carbide slag edulcoration processing system | |
| CN107159676B (en) | Method for improving recycling efficiency of underground continuous wall retaining wall slurry | |
| CN101935581B (en) | Separation regeneration production process of cutting waste mortar by silicon wafer line | |
| CN104689925B (en) | Multistage classifier and classification method of superfine diamond micro-powder particles | |
| CN206204023U (en) | A kind of waste mortar recycle and reuse system | |
| CN205095931U (en) | Carborundum granule sorting unit | |
| CN216022129U (en) | Traditional chinese medicine separation and extraction system | |
| CN111076464A (en) | Online concentrated conveying system of ice thick liquid | |
| CN102776062A (en) | Treatment method of silicon wafer cutting liquid waste | |
| CN106335902A (en) | Method for recovering carbonized silica powder | |
| CN202700233U (en) | Circulating water filter device used for preparing resin precoated sand |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160224 Termination date: 20161029 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |